Pump.



T. J. HAYES.

PUMP.y

APrLIoATIoN FILED JAN. 5, 1912.

1,1 14,689. Patented Oct. 20, 1914.

- Toy all whom t may concern."

g UNITED 'STATES PATENIOFFICE. :moms mieres, or cLnvEnAND, ori'ro, `n 's'srcrivo'it ro Limmen, 1 o?k BOSTON, MASSACHUSETTS. L

l Pour.

Specic'ationof Letters Patent. (het, 1914:,

.ippiieaucn mea Januari 5, 1912. 'seriai No. 669.5918. I

Be it knownthatI, THOMAS J. IjIaYES, a citizen .of the United States, residing' at Cleveland, in the county of Cuyahoga and l State of Ohio, have invented certain new and useful Improvements in Pumps, of

which the following is'a full, clear, and exact specification.

This invention relates to alipump for pumping a Huid, particularly air, and is adapted for operation by connection to the cylinder of an explosion engine. n

It is of particular value for pumping air into the tires of automobiles-and other ve- 'hicles operated by hydro-'carbon engines, but it is obvious that it 'may be used for other Y.

pu oses.

. he invention ceeding simplicity` of construction easily and 20,cheaply constructed, and one 'of great eiciency. o The nature of the invention will vmore fully appearffronrthe accompanying description and drawings, and will be p articularly pointed out -in the appended claims.

' The drawings illustrate a preferred form of the invention adapted for use in connection with an automobile. y p K vIn tho drawingsiFig'ure 1 is a view of the entire device chiefly in central cross-section; Fig. 2 is a detailed view showing the means for preventing relativev rotation of the sleeve and casing. Fig. 3 is a detail showing the deviceadapted for connection with a pet cock in the engine cylinder.

Q In the form ofthe device'shown 1 is theV casing ofthe pump preferably cylindrical,

as-shown', and exteriorly screw-threaded at 46 each en d, as indicated at 2, to provide for the attachment thereto of the heads and 4 respectively which form part of thai-casing The head 3 is provided with a passageway [through which the iluid compressed by the piston of the pump is discharged and means are provided in this passageway for permitting discharge only therethrough. In the drawings the discharge passageway is shown asbeginning at 5 and it extends out through the nozzle 6. the passagewav Yis located in the engine cylinder.

presents a .device of exof the pump is providedwvith means for connection tothe cylinder or explosion chamber ,of an explosion or hydrocarbon engine.

Such means are shown as the pipe 9 threaded at one end into the head 4 and provided atits projecting end with a threaded portion 6'5 10 which may be inserted in the threaded socket provided in vsuch engines .for the sparking plug. The pump may also be connected toa pet cock-such as usually provided shown in Fig. 3, a reducing cap 30 isscrewed into the lead and this connectionv may readily be Amade to the threaded end-of the pet cock..

andthis sleeve fits closely the interior of the casing, but is capable cfa limited longitudinal 4movement Within the casing. Thev sleeve 11 is, therefore, shown as somewhat` shorter than the length of the casing. Relative Vrotary movement between the sleeve and the casing is prevented by a pin .12 secured in the casing 1 and extending into a longitudinal slot 13 in the sleeve 11. The sleeve and the casing are each providedwith one or more fluid receiving ports.'Y The ports in' the casing are indicated at 14 and those iii ,the sleeve at 15. Whenthe sleeve is Vat the engine end of its longitudinal movement,

that is in the position shown in Fig. 1, these 9o ports are in alinement so that Huid, such as atmos heric air, may pass in through the portsinto the interior ofthe pump. Upon the movement of the sleeve'toward the dis- 'chargeend of the pump these ports pass out 95 and weight so that it will lhave a. steady easy 10o movement therein. In the fornishown' the piston comprises a heavyY metal head 16 snugly fitting thefnterionof the sleeve, a

stem 17 and a head made up of metaldisks pump. A tube 8 is connected nozzle In such case, as 7o Within'. the casing a sleeve 11 is located 57 50 a suitable checkfvalve 7 ,the details of which are notl involved in this invention as any suitable and well known form may be em- --ployed '"Thei'function of thecheck valve,

as usual, is to-permit the uid to ldimhare 55 therethrough, but prevent its return into t e 18 clamped together by a`nut 19, .and clamp- 105 ing in lace an interposed' packing disk 20 ofsuitale material.

from the foregoin rlfhe action of the pump will be appgrnty If, 'Afor enample, 1t is 11o desired to pump up a deiated tire of an automobile, one of the sparking plugs is unscrewed from its socket and the threaded end of the pipe 9 is secured into its place. The tube 8 is connected with the valve of the tire. The parts of the pump will either be in the osition shown in Fig. 1 or they will immediately assume that position upon suction taking place in the engine. Upon the compression stroke in the engine cylinder the Y piston and sleeve held together by the friction therebetween will move longitudinally toward the discharge end of the pump, closing the ports 14. The piston will then con tinue its movement compressing the air in front and forcing it through the check-valve 7. Upon the return stroke of the engine the pump, piston and the sleeve will move t0- .ward the'engine end of the pump until the ports 14 and 15 are in alinement and the sleeve is in the position shown in Fig. 1, then the piston will continue its movement drawing air in through the alined ports until it reaches the end of its stroke. The pump may be connected, as provided in Fig. 3, to a pet cock in the engine cylinder and then the explosion stroke of the' engine made use of without cutting out the cylinder and enabling the pump to be applied to a one cylinder engine. A I

Itis bvions that various changes may be made in the construction, shape and proporand a piston snugly ittiu tion of the parts without departing fromthe principle of this invention, as defined by the aims. v

, Havin thus fully described myinvention what I c ann as new and desire to secure by Letters Patent is 1. A pump adapted for operation by connection to the cylinder of an explosion engine comprising a casing, presenting a discharge passageway from one end, means for permitting only discharge through said passageway, means for connecting the op site end of the casing to the en e cylin er, a sleeve fitting the interior oiluslaid casing and having a limited longitudinal movement therein, means for preventing relative rom tary movement of said sleeve and casing, ports in saidV sleeve and casing near the upper ends thereof which aline when the sleeveis at the engine end of the casing and which pass out of alinement upon the movement of the sleeve toward the discharge end, the interior of sa1dsleeve,the friction be Ween the piston and the sleeve securingthe movement of the sleeve upon the movement of the piston.

2. In a device of the character described a. casing, a' sleeve ttin the interior of said casing and having a imited longitudinalA the upper ends thereof which alinefwhen the vsleeveis at the engine end of the casing and which ass out of alinement upon the movement o the sleeve toward the discharge end, and a piston snugly fitting the interior of said sleeve, the yfriction between thwpiston 7o and the sleeve securing the movement of the sleeve upon the movement of the piston.

3. A pump ada ted for operation by connection to the cy inder of anexplosion en'- gine comprising a casing, presenting a discharge passageway from one end, means for permitting only discharge through said pas\ sageway, means for connecting the opposite end of the casing to the engine cylinder, a sleeve fitting the interior of said casing and having a limited longitudinal movement, ports in said sleeve and casing near the upper ends thereof which aline when the sleeve is at the engine end of the casing and which pass out of alinement upon the movement of the sleeve toward the discharge end, means rfor preventing relative rotary movement of said sleeve and casing, and a piston snugly fitting the interior of said sleeve, the friction between the pistonandtli'e sleevej se- 90 curing the movement of the sleeve upon the movement of the piston.

4'. In a device of the character described a casing, a sleeve tting the interior of said casing and having a limited longitudinal movement therein, means for preventing relative rotary movement of said sleeve and casing, ports in said sleeve and casing near the upper ends' thereof which aline when the sleeve is at the engine end of the casing and which pass out of alinement upon the movement of the sleeve toward the discharge end, and a piston snugly fitting the interior of said sleeve, the friction between the piston and the sleeve securing the movement of the sleeve upon the movement of the piston.

5. A puin adapted for operation by connection to t e cylinder of an explosion engine comprising a casing, a head detachably mounted at one end thereof and provided with a discharge passage way, means for permitting only discharge through said assage way, a head'detachably connecte to the opposite end of the casing, adapted for vconnection to the engine cylinder, a sleeve fitting the interior o said casing and having a limited movement therein, a longitudinal slot in the lower end of said sleeve, a insecnred to the casing and extending 12 i.. o said longitudinal slot whereby relative rotary movement between the' sleeve and the casing is prevented, ports in said sleeve and casing,- near the upper ends thereof which aline when the sleeve is at the en e end of 135;

the casing and which pam out o alinemen't upon movement of the sleeve toward .the discharge end, anda piston snuglyxttmg the interior of said sleeve, the tween the piston and thevsleeve sectnihgtlie movement of the sleeve upon the .movement .of the piston.

6. A pump adapted for operation by connection to an explosion 'engine comprising a. casing,l a head deatchablyY mounted at one end thereof and provided with a discharge passage Way, means for permitting only discharge through said passage way, a head detachably connected to the opposite end of the casing, a reducing cap mounted-in'said last mentioned head to permit connection to and extending a pet cock of the Vcylinderof an explosion engine, a sleevetting the interior of said' casing and having a movement therein, a longitudinal slot in the lower end of said sleeve, a pin secured to the into said longitudinal slot whereby relatlve rotarymovement between.

ends thereof which aline when the vsleeve is a at the engine end of the casing and which pass out of alinement upon movement of the sleeve toward-,the discharge "end,l and apis- -ton snugly fitting the interior of said sleeve, the frictlon between the piston and the sleeve securing the movement of the sleeve upon the movement-of thepiston. w

In testimony whereof Iv have signed my nameto this two subscribing'wimesses. Y

' 4 THOMAS J. HAYES.

VVitnessesz'V MARY F.'- LINCOLN, -c NATAN HEARD.

specification in thepresence ofv 

